1 /* Things the lguest guest needs to know. Note: like all lguest interfaces,
2 * this is subject to wild and random change between versions. */
6 /* These are randomly chosen numbers which indicate we're an lguest at boot */
7 #define LGUEST_MAGIC_EBP 0x4C687970
8 #define LGUEST_MAGIC_EDI 0x652D4D65
9 #define LGUEST_MAGIC_ESI 0xFFFFFFFF
14 #define LHCALL_FLUSH_ASYNC 0
15 #define LHCALL_LGUEST_INIT 1
16 #define LHCALL_CRASH 2
17 #define LHCALL_LOAD_GDT 3
18 #define LHCALL_NEW_PGTABLE 4
19 #define LHCALL_FLUSH_TLB 5
20 #define LHCALL_LOAD_IDT_ENTRY 6
21 #define LHCALL_SET_STACK 7
23 #define LHCALL_TIMER_READ 9
24 #define LHCALL_HALT 10
25 #define LHCALL_GET_WALLCLOCK 11
26 #define LHCALL_BIND_DMA 12
27 #define LHCALL_SEND_DMA 13
28 #define LHCALL_SET_PTE 14
29 #define LHCALL_SET_PMD 15
30 #define LHCALL_LOAD_TLS 16
32 #define LGUEST_TRAP_ENTRY 0x1F
34 static inline unsigned long
35 hcall(unsigned long call,
36 unsigned long arg1, unsigned long arg2, unsigned long arg3)
38 asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
40 : "a"(call), "d"(arg1), "b"(arg2), "c"(arg3)
45 void async_hcall(unsigned long call,
46 unsigned long arg1, unsigned long arg2, unsigned long arg3);
48 /* Can't use our min() macro here: needs to be a constant */
49 #define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
51 #define LHCALL_RING_SIZE 64
54 u32 eax, edx, ebx, ecx;
57 /* All the good stuff happens here: guest registers it with LGUEST_INIT */
60 /* Fields which change during running: */
61 /* 512 == enabled (same as eflags) */
62 unsigned int irq_enabled;
63 /* Interrupts blocked by guest. */
64 DECLARE_BITMAP(blocked_interrupts, LGUEST_IRQS);
66 /* Virtual address of page fault. */
69 /* Async hypercall ring. 0xFF == done, 0 == pending. */
70 u8 hcall_status[LHCALL_RING_SIZE];
71 struct hcall_ring hcalls[LHCALL_RING_SIZE];
73 /* Fields initialized by the hypervisor at boot: */
74 /* Memory not to try to access */
75 unsigned long reserve_mem;
76 /* ID of this guest (used by network driver to set ethernet address) */
79 /* Fields initialized by the guest at boot: */
80 /* Instruction range to suppress interrupts even if enabled */
81 unsigned long noirq_start, noirq_end;
83 extern struct lguest_data lguest_data;
84 #endif /* __ASSEMBLY__ */
85 #endif /* _ASM_LGUEST_H */